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Cumulus
Office

Model # SX/20 Official Cumulus computer

Here are the diagrams and repair parts for Official Cumulus SX-20 computer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 9 of 9 parts  |
Em1428 14"cl 300000T0

#NI

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Em1428 14"cl

Part #300000T0

The manufacturer no longer makes this part, and there's no substitute part

Keylk/keys 6290170

#NI

All parts diagram

Keylk/keys

Part #6290170

The manufacturer no longer makes this part, and there's no substitute part

Power Cord 6290114

#NI

All parts diagram

Power cord

Part #6290114

The manufacturer no longer makes this part, and there's no substitute part

Ac Pur Ad Cr 6360139

#NI

All parts diagram

Ac pur ad cr

Part #6360139

The manufacturer no longer makes this part, and there's no substitute part

Speaker Assembly 6290180

#NI

All parts diagram

Speaker assembly

Part #6290180

The manufacturer no longer makes this part, and there's no substitute part

Processor Bd 9020289

#NI

All parts diagram

Processor bd

Part #9020289

The manufacturer no longer makes this part, and there's no substitute part

80mgdr W/sft 2030039

#NI

All parts diagram

80mgdr w/sft

Part #2030039

The manufacturer no longer makes this part, and there's no substitute part

Em1428 14"cl 300000T0R

#NI

All parts diagram

Em1428 14"cl

Part #300000T0R

The manufacturer no longer makes this part, and there's no substitute part

101 Keyboard 6370020

#NI

All parts diagram

101 keyboard

Part #6370020

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for water softeners

Choose a symptom to see related water softener repairs.

View all

Why does my water softener overflow?

Main causes: faulty brine valve assembly, bad rotor valve…

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Why is my softened water salty?

Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals…

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Why isn't my water softener using salt?

Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi…

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Why does my water softener leak water?

Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals…

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Why is there no display on my water softener?

Main causes: lack of electrical power, bad power transformer, faulty timer…

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Why isn't my water softener softening my water?

Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, fai…

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Why are water softener resin beads in my water?

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank…

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Why isn't my water softener meter working?

Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed…

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Repair guides for water softeners

These step-by-step repair guides will help you safely fix what’s broken on your water softener.

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How to replace a water softener venturi

How to replace a water softener venturi

The venturi valve in your water softener draws brine water from the salt tank to the resin tank for regeneration. Follow…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a water softener rotor position switch

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these step…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water softener timer

How to replace a water softener timer

The timer is the control board you use to program the water softener. If the timer isn’t accepting commands when you pus…

Read more
Repair difficulty
Time required
 15 minutes or less

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What does the Amazon Fire Stick Lite do?

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